How does it handle external dependencies like databases?

It provides specific mocking patterns for popular services like Supabase, Redis, and OpenAI, ensuring your tests remain isolated, fast, and reliable.

Can I customize the coverage requirements?

While the skill defaults to an 80% coverage goal, you can easily adjust the threshold in your project's configuration to match your specific team standards.

Does this skill work for existing projects?

Yes, it can be applied to legacy codebases to guide refactoring efforts and help you incrementally increase test coverage to the recommended 80% threshold.

What testing frameworks does this skill support?

The skill includes patterns and configurations for Jest, Vitest, Playwright, and React Testing Library, making it compatible with most modern JavaScript and TypeScript environments.

Does it support API testing?

Yes, it includes detailed patterns for integration testing of API routes, including request validation, response status checking, and database interaction mocks.

TDD Workflow & Test Automation

Name: TDD Workflow & Test Automation
Author: affaan-m

byaffaan-m

•

32,752

•

Security & Testing

Enforces test-driven development principles to ensure 80%+ code coverage through unit, integration, and E2E testing cycles.

This skill transforms Claude into a test-driven development expert, mandating a 'tests-first' approach for all new features, bug fixes, and refactors. It provides structured guidance for creating comprehensive test suites using industry-standard tools like Vitest, Jest, and Playwright, while ensuring rigorous coverage across unit logic, API endpoints, and end-to-end user journeys. By integrating mocking patterns for services like Supabase and Redis, it helps developers maintain high-quality, resilient codebases with automated verification at every step of the development lifecycle.

Key Features

01Pre-configured mocking strategies for external APIs and databases

0232,752 GitHub stars

03Ready-to-use patterns for Unit, Integration, and Playwright E2E tests

04Minimum 80% code coverage enforcement across all layers

05Mandatory tests-before-code implementation workflow

06Automated test file organization and coverage reporting

Use Cases

01Refactoring legacy code while maintaining functional integrity

02Building new features with a focus on reliability and edge-case handling

03Implementing robust API endpoints with validated error scenarios

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add affaan-m/everything-claude-code tdd-workflow

For use in Claude.ai and ChatGPT

Download Skill